Patents Assigned to Biolife, L.L.C.
  • Patent number: 11554137
    Abstract: A composition and method useful in promoting healing of a bleeding wound site. The composition preferably includes a substantially anhydrous acid form of a cation exchange resin, which when applied over blood, provides an antimicrobial against planktonic microorganisms and biofilms in the wound. The resin is also capable, when applied in sufficient quantities, of providing a continuing and persistent antimicrobial against planktonic microorganisms and biofilms through dehydration and ion exchange with cations present in the blood and other body fluids. When the resin has a concentration of at least 26 mg/ml, it provides a >3 log reduction in biological activity of MRSA, MRSE and Pseudomonas aeruginosa.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: January 17, 2023
    Assignee: Biolife, L.L.C.
    Inventors: John Hen, John Alfred Thompson, Talmadge Kelly Keene, Mark Travi
  • Patent number: 11241386
    Abstract: A wound sealing powder, method of making a wound sealing powder, and method of using a wound sealing powder to reduce blood flow from a wound are provided. Specifically, the wound sealing powder utilizes a particulate powder material of an effective amount of an insoluble cation exchange material wherein the majority of the particles in the powder have particle sizes of less than approximately 48 microns.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: February 8, 2022
    Assignee: Biolife, L.L.C.
    Inventors: Kurt Vadelund, Talmadge Kelly Keene, Mark Travi
  • Patent number: 10076319
    Abstract: This invention is directed to devices and methods for improving wound closures produced during endoscopic surgery. These methods are directed to delivering and applying a quantity of hemostatic agents in either powder, solid, liquid, or gel form onto an open wound produced e.g., by polyp removal, followed by the application of pressure. The method is implemented preferably using existing endoscopic equipment; however, modifications to existing endoscopic insertion tubes, application and tamping devices and endoscopic clips deployed from the distal end of the insertion tube during endoscopic surgery are also within the scope of this invention.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: September 18, 2018
    Assignee: BIOLIFE, L.L.C.
    Inventors: Talmadge Kelly Keene, John Tifton Fordham, Louis M. Guzzi, Charles E. Entenmann
  • Patent number: 9877728
    Abstract: A hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery to a bleeding wound. The tablet improves the rate of adhesion to a bleeding wound surface, and allows a significantly greater and more uniform pressure to be exerted by manual compression of the tablet on the wound site, as compared to that of a thin layer of scattered hemostatic powder. After the seal is formed from the interaction of blood or exudates with the immediate contacting surface of the tablet, the bulk of the unused tablet easily delaminates from the seal making clean up facile. If the unused portion of the tablet is not removed from the wound site, a reservoir of hemostatic dressing stops further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: January 30, 2018
    Assignee: Biolife, L.L.C.
    Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
  • Patent number: 9757412
    Abstract: A composition and method useful in promoting hemostasis, absorbing ooze, and being antimicrobial with respect to an open wound. The composition broadly includes an antimicrobial agent, preferably povidone iodine, preferably a ferrate compound, and a cation ion exchange resin. This composition will destroy a biofilm which has formed over the open wound in providing a soluble iron compound, a cation chelation compound, and an active antimicrobial compound effective against planktonic microorganisms and biofilms. The antimicrobial agent is locked or sealed within the scab formed over the wound to maintain long-term positioning and anti-dilution of the antimicrobial over the wound.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: September 12, 2017
    Assignee: Biolife, L.L.C.
    Inventors: Talmadge Kelley Keene, John Hen
  • Patent number: 9585671
    Abstract: A hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery to a bleeding wound. The tablet improves the rate of adhesion to a bleeding wound surface, and allows a significantly greater and more uniform pressure to be exerted by manual compression of the tablet on the wound site, as compared to that of a thin layer of scattered hemostatic powder. After the seal is formed from the interaction of blood or exudates with the immediate contacting surface of the tablet, the bulk of the unused tablet easily delaminates from the seal making clean up facile. If the unused portion of the tablet is not removed from the wound site, a reservoir of hemostatic dressing stops further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: March 7, 2017
    Assignee: Biolife, L.L.C.
    Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
  • Patent number: 9039667
    Abstract: A method of arresting blood flow from a bleeding wound including the steps of (1) providing a solid hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery onto a bleeding wound, the tablet defining a proximal portion and a distal portion, (2) applying the proximal portion against the bleeding wound to improve the rate of adhesion to a bleeding wound surface, and then (3) applying pressure against the tablet over the wound site. After the seal is formed from the interaction of blood or exudates with the proximal portion of the tablet, the distal portion of the tablet delaminates from the proximal portion to form a reservoir to stop further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: May 26, 2015
    Assignee: Biolife, L.L.C.
    Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
  • Patent number: 8979726
    Abstract: A composition and method of arresting the flow of blood from a bleeding wound. The composition preferably includes an anhydrous salt ferrate compound preferably combined with an effective amount of an insoluble cation exchange material and an effective amount of anhydrous Magnetite mixed uniformly together. Povidone iodine may be added for enhanced antimicrobial properties. In the method, a quantity of the composition is magnetically attached to a surface of a magnet, after which the powderous mixture is applied to the wound by pressing the surface covered with the powderous compound against the wound for a time sufficient to clot the blood to arrest substantial further blood flow from the wound.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: March 17, 2015
    Assignee: Biolife, L.L.C.
    Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
  • Patent number: 8961479
    Abstract: A hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery to a bleeding wound. The tablet improves the rate of adhesion to a bleeding wound surface, and allows a significantly greater and more uniform pressure to be exerted by manual compression of the tablet on the wound site, as compared to that of a thin layer of scattered hemostatic powder. After the seal is formed from the interaction of blood or exudates with the immediate contacting surface of the tablet, the bulk of the unused tablet easily delaminates from the seal making clean up facile. If the unused portion of the tablet is not removed from the wound site, a reservoir of hemostatic dressing stops further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: February 24, 2015
    Assignee: Biolife, L.L.C.
    Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
  • Patent number: 8821848
    Abstract: A composition and method useful in promoting hemostasis, absorbing ooze, and being antimicrobial with respect to an open wound. The composition broadly includes an antimicrobial agent, preferably povidone iodine, preferably a ferrate compound, and a cation ion exchange resin. This composition will destroy a biofilm which has formed over the open wound in providing a soluble iron compound, a cation chelation compound, and an active antimicrobial compound effective against planktonic microorganisms and biofilms. The antimicrobial agent is locked or sealed within the scab formed over the wound to maintain long-term positioning and anti-dilution of the antimicrobial over the wound.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 2, 2014
    Assignee: Biolife, L.L.C.
    Inventors: Talmadge Kelly Keene, John Hen
  • Publication number: 20130150652
    Abstract: A composition and method of arresting the flow of blood from a bleeding wound. The composition preferably includes an anhydrous salt ferrate compound preferably combined with an effective amount of an insoluble cation exchange material and an effective amount of anhydrous Magnetite mixed uniformly together. Povidone iodine may be added for enhanced antimicrobial properties. In the method, a quantity of the composition is magnetically attached to a surface of a magnet, after which the powderous mixture is applied to the wound by pressing the surface covered with the powderous compound against the wound for a time sufficient to clot the blood to arrest substantial further blood flow from the wound.
    Type: Application
    Filed: February 6, 2013
    Publication date: June 13, 2013
    Applicant: BIOLIFE, L.L.C.
    Inventor: BIOLIFE, L.L.C.
  • Publication number: 20120087887
    Abstract: A composition and method useful in promoting healing of a bleeding wound site. The composition preferably includes a substantially anhydrous acid form of a cation exchange resin, which when applied over blood, provides an antimicrobial against planktonic microorganisms and biofilms in the wound. The resin is also capable, when applied in sufficient quantities, of providing a continuing and persistent antimicrobial against planktonic microorganisms and biofilms through dehydration and ion exchange with cations present in the blood and other body fluids. When the resin has a concentration of at least 26 mg/ml, it provides a >3 log reduction in biological activity of MRSA, MRSE and Pseudomonas aeruginosa.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Applicant: BIOLIFE, L.L.C.
    Inventors: John Hen, John A. Thompson, Talmadge Kelly Keene, Mark Travi
  • Patent number: 8110208
    Abstract: A hemostatic composition for stopping or decreasing blood flow from an open wound or medical or surgical procedure. Compositions of the invention comprise a mixture of a cationic polymer and a cation exchange material. In one embodiment, the composition comprises a mixture: (1) a high molecular weight copolymer of diallyl dimethyl ammonium chloride (DADMAC) and acrylamide [DADMAC copolymer], and (2) the hydrogen form of a crosslinked, sulfonated polystyrene (hydrogen resin). In an exemplified embodiment, a composition of the invention comprises the mixture of DADMAC copolymer and hydrogen resin provided in a dry powdered form. The compositions of the invention may be applied directly to a wound or treatment site, or they may be incorporated into a wound dressing, such as a bandage. The seal formed at a wound or treatment site treated with the present invention is adhesive and exhibits considerable toughness.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: February 7, 2012
    Assignee: Biolife, L.L.C.
    Inventor: John Hen
  • Publication number: 20110245868
    Abstract: A wound sealing system and method for closing a vascular access site. The method invisions suturing a single continuous Z-stitch into a skin area around a wound and wound tract while the catheter remains within the vessel; covering the wound and suture holes with a hemostatic powder; tightening and knotting the ends of the suture together in an X configuration, applying finger pressure against the hemostatic powder as the catheter is removed; and twisting the suture ends together to tension the Z-stitch, pulling the skin area into inversion. The wound sealing system includes a powder containment device (PCD) which surrounds wound and catheter and a suture twisting member configured with the PCD to tension the Z-stitch closing the wound and arresting blood flow. The hole in the PCD holds a quantity of the hemostatic agent sufficient to cover the wound and suture holes.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Applicant: BIOLIFE, L.L.C.
    Inventors: Rex Teeslink, Griscom Bettle, Talmadge Kelly Keene
  • Patent number: 8007833
    Abstract: A method of reducing infections associated with vascular access procedures. A powder containment device (PCD) is preferably adhesively attached to a skin area, the PCD having a hole formed centrally therethrough adapted to completely surround the catheter wound site. The open cavity formed by the PCD being attached to the skin is filled with a hemostatic agent of a salt ferrate and an insoluble cation exchange material. The salt ferrate combines with blood to form a trivalent Fe+++ ion promoting blood clotting and producing oxygen at the wound site for bacteria reduction. The cation exchange material also forms a protective cover over the wound site as the trivalent Fe+++ ion is formed. Semi-occlusive pressure is applied against the hemostatic agent for a time sufficient to arrest blood flow from the wound site right after inserting or removing the catheter. The PCD and hemostatic agent are then covered with an adhesive dressing.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: August 30, 2011
    Assignee: Biolife, L.L.C.
    Inventors: John Hen, Roger Thomas, Griscom Bettle, Timothy J. Kelly
  • Publication number: 20110060295
    Abstract: A method of reducing infections associated with vascular access procedures. A powder containment device (PCD) is preferably adhesively attached to a skin area, the PCD having a hole formed centrally therethrough adapted to completely surround the catheter wound site. The open cavity formed by the PCD being attached to the skin is filled with a hemostatic agent of a salt ferrate and an insoluble cation exchange material. The salt ferrate combines with blood to form a trivalent Fe+++ ion promoting blood clotting and producing oxygen at the wound site for bacteria reduction. The cation exchange material also forms a protective cover over the wound site as the trivalent Fe+++ ion is formed. Semi-occlusive pressure is applied against the hemostatic agent for a time sufficient to arrest blood flow from the wound site right after inserting or removing the catheter. The PCD and hemostatic agent are then covered with an adhesive dressing.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 10, 2011
    Applicant: BIOLIFE, L.L.C.
    Inventors: John Hen, Roger Thomas, Griscom Bettle, Timothy J. Kelly
  • Publication number: 20100226873
    Abstract: A composition and method of arresting the flow of blood from a bleeding wound. The composition preferably includes an anhydrous salt ferrate compound preferably combined with an effective amount of an insoluble cation exchange material and an effective amount of anhydrous Magnetite mixed uniformly together. Povidone iodine may be added for enhanced antimicrobial properties. In the method, a quantity of the composition is magnetically attached to a surface of a magnet, after which the powderous mixture is applied to the wound by pressing the surface covered with the powderous compound against the wound for a time sufficient to clot the blood to arrest substantial further blood flow from the wound.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 9, 2010
    Applicant: BIOLIFE, L.L.C.
    Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
  • Publication number: 20100129427
    Abstract: Hemostatic wound dressings for substantially arresting the flow of severe, life threatening bleeding from a wound by rapidly adhering to the wound site, absorbing and concentrating and thickening the blood at the dressing blood interface and accelerating the natural clot formation beneath the dressing and finally, forming a strong seal that will substantially prohibits further flow of blood out of the wound site. These hemostatic wound dressings are formed of unique combinations of hemostatic dressing aspects which achieve wound seal strengths that are significantly higher than the sum of seal strengths expected from the individual aspects alone. Some embodiments also achieve these synergistic seal strengths by combining one hemostatic dressing with a non-hemostatic device.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 27, 2010
    Applicant: BIOLIFE, L.L.C.
    Inventors: John Hen, Talmadge Kelly Keene, Mark Travi
  • Publication number: 20100074963
    Abstract: A cosmeceutically acceptable formulation as a wound dressing including red palm oil and a triglyceride, preferably fish oil, preferably derived from salmon. Another aspect of this disclosure is providing a mixture of red palm oil and very long chain (>C>18) omega 3 and 6 fatty acids. The formulation may also include one or more of the following: coconut oil and shea butter for anti-inflammatory activity and antimicrobial efficacy, fish collagen, an acidic preservative, a cationic surfactant, and various vitamins.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 25, 2010
    Applicant: Biolife, L.L.C.
    Inventor: Griscom Bettle
  • Patent number: 6521265
    Abstract: A method of arresting the flow of blood and other protein containing body fluids flowing from an open wound and for promoting wound healing. In the method, a substantially anhydrous compound of a salt ferrate is provided for a unique use which, when hydrated after mixing with a victim's own blood or other aqueous media, produces Fe+++ thereby promoting clotting when applied in a paste form to the wound for a time sufficient to arrest substantial further blood and other body fluid flow from the wound. The compound is formed of a ferrate (VI) salt taken from the group consisting of H, Li, Na, K, Rb, Cs and Fr. However, to decrease or eliminate stinging sensation, the compound may be formed having a ferrate (VI) salt taken from the group consisting of Be, Mg, Ca, Sr, Ba, Ra, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, TI, Pb, Bi, Al, As, NH4 and N(C4H9)4.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: February 18, 2003
    Assignee: Biolife, L.L.C.
    Inventor: James A. Patterson